For the past several years, DSRC has been the only V2X technology available. After a long period of multiple large-scale field tests, DSRC based V2X went into production in Japan in 2015 and in the US in 2017 in selected vehicle models. In 2019, VW released its Golf 8 with DSRC based V2X, making Europe’s most popular car the first mass market vehicle with V2X.

The more recent C-V2X technology has the same purpose of direct communication link between vehicles. C-V2X is defined by 3GPP based on cellular modem technology, leading to fundamentally different non-interoperable access layer with DSRC. Aside from that, the two technologies are addressing identical use-cases and having identical network, security and application layers. Read More